Definition of spermatozoon in English:



  • The mature motile male sex cell of an animal, by which the ovum is fertilized, typically having a compact head and one or more long flagella for swimming.

    • ‘The testes in your body are continuously producing hundreds of millions of reproductive cells called spermatozoa.’
    • ‘The seminal plasma of mammals is a complex fluid, which serves as a carrier for the spermatozoa in their journey from the male testes to their target, the female uterus.’
    • ‘Mutated DNA can only be passed to the next generation if it is present in a germ cell such as spermatozoa and ova, each of which contribute half of the DNA of the new organism.’
    • ‘We rather think of the latter as a new form of life to whose nature both the ovum and the spermatozoon have made significant contributions.’
    • ‘Is it wrong to employ existing techniques of sperm filtration, separating androgenic from gynogenic spermatozoa, and fertilising eggs with the desired type?’


Mid 19th century: from Greek sperma, spermat- ‘seed’ + zōion ‘animal’.